Interstellar comet 3I/Atlas has moved within 300 million km of Earth as scientists continue tracking its rare journey.

A new pre-print paper suggests that our latest interstellar visitor, comet 3I/ATLAS, may be headed for one final close ...

Key Findings The tail shouldn't exist at that distance. The mass loss exceeds what the object can afford to lose. What we're ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

Interstellar comet 3I/ATLAS got an accuracy boost thanks to a Mars orbiter, giving scientists insights and stronger planetary ...

The object is the third interstellar visitor to our solar system ever confirmed. It will reach its closest point to Earth ...

NASA will host a live event at 3 p.m., Wednesday, November 19, to share imagery of the interstellar comet 3I/ATLAS.

A flying piece of cosmic rock or an alien threat? Comet 3I/ATLAS is hurtling through our solar system and captivating ...

The NASA/ESA Hubble Space Telescope, in collaboration with several other ground- and space-based telescopes, has captured a galaxy being ripped apart by a galaxy cluster’s gravitational field and ...